面对人民群众日益高涨的“严打”电信网络诈骗的呼声，最高法院、最高检、公安部、工信部、中国人民银行、中国银监会等六部门于9月23日联合发布《关于防范和打击电信网络诈骗犯罪的通告》，将打击电信网络诈骗上升为国家行动。对此理解正确的是（    ）

①体现了保障人民民主是社会主义的生命

②回应人民群众呼声是我党治国理政的要求

③国家方针政策可以通过多部门协调组织实施

④行政机关和司法机关都是中共中央的职能部门

海鲜馆里有一道菜叫“西施舌（一种软体动物）炒九层塔（一种香料植物）”媒体报道九层塔含有黄樟素。（甲）小明认为微量黄樟素会导致癌症；（乙）于是，他准备了两组老鼠，一组长期喂含有微量黄樟素的食物，另一组喂正常食物；（丙）一年后，两组老鼠都没患癌症。
（1）上文（甲）应属于科学探究方法的哪一步。答____ 
（2）当实验结果不符合假设时，说明假设是____ （填正确或错误）
（3）步骤____ 采用的是科学探究活动中常用的对照实验。
（4）科学探究的方法很多，下列方法中①观察②调查③收集和分析资料④实验属于科学探究方法的是____ （有几个选几个）
（5）由于受到某种不利因素的作用，正常细胞可能发生癌变变成癌细胞，引起细胞癌变的因素很多，请举出其中的一例，如____ 。

    Five years ago I was working in an office. My life was all about dealing with complaints, meeting deadlines and writing reports. I wasn't completely bored 1it didn't excite me. One 2I went out to buy a sandwich. It was sunny and I wasn't 3at work, so I decided to 4 it in the park. I could see a group of people 5a TV programme nearby. They seemed to be arguing about something and everybody looked very6 .

    Suddenly I realized everyone was 7me. And then two of them started walking over---towards me! They   8that they were making a short film and one of their actors hadn't 9 . He only had one line in the story, they said. Would I mind 10  the line?

    I could tell they were desperate and although I'd never done any acting in my life, for some reason I  11.

    An hour later we finished. It was really an amazing experience. The people were very 12 and paid me for my time. However, 13 I was leaving, the director of the film came over and 14 me his card. He thought I'd been brilliant and was naturally talented as a(n)15 I laughed but16 to call him some time.

    Well, I did call him. I went for an audition(试演)for another short film with the director. And I got the 17 . Two years later I 18  my office job and I'm now working almost full-time as an actor. I love the work and I'm going back to college next year to study 19 . My life is now completely20, all because of that lunch in the park.